115 entries under adjective topic. ×

2
veritable(physical, material, certain, absolute)
1
absolutely certain(expression, solid, certain, sure)
1
acknowledged
1
airtight
1
apodictic
1
cinched(solid, certain, sure, confident)
1
clinched(solid, certain, sure, confident)
1
compelling(sound, reasonable, rational, definite)
1
confirmed(good, sound, right, reasonable)
1
dependable(flat, solid, superior, certain)
1
electropositive
1
ensured(solid, certain, sure, confident)
1
express(clear, certain, sure)
1
favorable
1
guaranteed(clear, hard, sound, firm)
1
impregnable
1
in the bag(expression, idiom, clear, firm)
1
insured(solid, certain, sure, confident)
1
invincible
1
invulnerable
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APASmart Define. (2015). irrefutable thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/irrefutable/thesaurus/synonyms
ChicagoSmart Define. 2015. "irrefutable thesaurus" https://smartdefine.org/irrefutable/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, irrefutable thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/irrefutable/thesaurus/synonyms>.
MLASmart Define. "irrefutable thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/irrefutable/thesaurus/synonyms>